Standalone ecu fitting + engine looms - Page 2 - Saxperience

jsdvtr · 5th January 2011, 17:13

I think sandy or someone with similar knowledge would be best to give some input into this.

jsdvtr · 15th January 2011, 16:34

Here a Pm i received from sandy about looms after see'ing this section, maybe some help to other so thought i'd post it up.

Recommended route is stripping the OE loom back to essentials and tidying up, used with an all new ECU loom. I charge £350 for both as an entirely plug and play arrangement for all major ECUs; which by the time you've been all around the houses with it, added the special TPS, CPS etc plugs, all the stuff I do as standard, (and read about the troubles other people have had) you'll see what great value that is!

I don't reccommend splicing the new ECU onto the original loom complete, because the original ECU wires are cheaply made and likely to be tired. The configuration of the relay can be simplified greatly, which makes for more reliable operation and easier trouble shooting, should you ever need to.

But I'm really busy currently and in no way wanting to sell you that! But I'm a bit reluctant to give away all the wiring data it's taken me alot of work to collect, I hope you understand.
Basically you need to identify the Switched ignition, Tacho feed, fuel pump power, to splice to the new ECU loom and create your own basic relay set up with conventional switching relays (one for ECU, one for fuel pump). You can't effectively operate the 3-plug style water temp gauge easily, so an aftermarket water temp gauge is easiest and generally a good more accurate addition anyway.

miamibluebaby · 18th January 2011, 16:51

Ive got the DTA S40 with a loom made up by Sandy and its about the neatest thing youl see top quality conectors really nice bit of kit!!

jsdvtr · 18th January 2011, 17:12

Quote:

Originally Posted by miamibluebaby

Ive got the DTA S40 with a loom made up by Sandy and its about the neatest thing youl see top quality conectors really nice bit of kit!!

How much work is needed to fit a sandy loom? Whats left to wire up?

Just deciding on looms at the moment cor my car to go with omex 600.

miamibluebaby · 18th January 2011, 18:15

Quote:

Originally Posted by jsdvtr

How much work is needed to fit a sandy loom? Whats left to wire up?

Just deciding on looms at the moment cor my car to go with omex 600.

nothing plug and play!

jsdvtr · 20th January 2011, 15:32

Quote:

Originally Posted by miamibluebaby

nothing plug and play!

How does the ecu connect upto the clocks then? Would i need to go and buy the omex loom and would just the basic one with no plugs/tails on be the right one. Just looking for best/cheapest option as no point me spending £325 on a omex loom when still got a bit of work to do when could get a £75 and send to sandy and thats it just fitting it.

Sandy309 · 21st January 2011, 06:51

With my looms you only send me the engine loom out of your car (or an exact replacement one), which I strip back to the starter/alternator/gauges basic functions and bin all the ECU wiring, leaving an interconnect plug for my ECU loom. I then make the ECU loom entirely from scratch using high quality wire/protection/connectors and finish it with the other interconnect plug that joins the two looms together.
Here are the two sections for DTA S40 in an S1 106 Rallye:

ECU loom:

Reduced and tidied engine loom:

I don't need any pin out looms or anything from OMEX and because it's custom made, ECU and sensor locations can be specified, different connectors used etc; so there is no further wiring required, you literally plug it in and use it, including shift light.

jsdvtr · 21st January 2011, 08:07

So would we need to specify which ecu we will be using for you to put the correct plug on for omex,dta,etc?

That is a good price considering a basic omex loom is £270 then youve got the standard loom to mess about with too but would then not end up with a good finish on the oem loom. When would you be able to do the work as know you said you was going to be busy?

Also with the big plug that connects to interior loom in the bay, is there anyway of getting rid of that or putting it inside the car? Just i want it to look minimalistic as i can.

Looking at putting battery in the boot too.

blackie_2k5 · 21st January 2011, 11:40

if your looking for the easiest and cheapest option why dont you jus get in on the pred groug buy at 470, then find a single plug crossover loom, all plug and play

jsdvtr · 21st January 2011, 12:07

Quote:

Originally Posted by blackie_2k5

if your looking for the easiest and cheapest option why dont you jus get in on the pred groug buy at 470, then find a single plug crossover loom, all plug and play

I want the ecu in the car, i was thinking about the pred but the hassle of doing single plug loom conversion seems a big pain like jim bob had. i want a tidy bay too getting rid of the fusebox, etc.

Sandy309 · 22nd January 2011, 07:05

Yes, the ECU needs to be specified, they virtually all have different plugs and configuration. Currently it's a case of if I can fit it in I will, I can probably do 2 or 3 before the end of March maximum, with everything else I'm committed to.

Moving the wing plug connection will pretty much mean re-wiring the engine bay. To be avoided unless you really like making work for yourself!!

Jungle · 27th January 2011, 16:44

GR Performance in Swinton do custom looms, there prices are usually best around and I dont think theyve ever had a complaint about anything theyve done. Done looms for all sorts of cars and they use top quality components.

axsaxoman · 28th January 2011, 15:31

around 11-14 wires need to moved to do a dta --your choice should depend on your mapper choice and functions you wish to use and if its boosted or n/a ,all ecu mentioned do a good job when fitted +set-up correctly ,but they all do things slightly differently ,so depending what you are doing and functions you want to use
one type might be slightly better than another + work out cheaper

jsdvtr · 28th January 2011, 15:42

Well im going to be using a omex 600 as at speed have a group buy. Seems a very good ecu too.

Just unsure on the loom now, which to go for, etc.

axsaxoman · 28th January 2011, 21:44

if it is a PURE track car and no frills then mount ecu inside car and make a custom loom ,cos you will be dumping most of the other parts of the std wirirng loom anyway

jsdvtr · 29th January 2011, 19:17

Quote:

Originally Posted by axsaxoman

if it is a PURE track car and no frills then mount ecu inside car and make a custom loom ,cos you will be dumping most of the other parts of the std wirirng loom anyway

Well the car is going to be just a toy and i plan on running the ecu inside the car. Thinking of maybe getting a sandy brown loom as its all just plug and play.

Jungle · 1st February 2011, 09:25

Quote:

Originally Posted by jsdvtr

Well the car is going to be just a toy and i plan on running the ecu inside the car. Thinking of maybe getting a sandy brown loom as its all just plug and play.

Whereever you get a loom made it will be plug and play

jsdvtr · 1st February 2011, 09:29

Quote:

Originally Posted by Jungle

Whereever you get a loom made it will be plug and play

Well sandy ones are the only ones i know of being plug and play and are probably the best. Like the omex loom is still incomplete loom and thats just the ecu loom rather than the oem too.

Jungle · 1st February 2011, 09:41

Quote:

Originally Posted by jsdvtr

Well sandy ones are the only ones i know of being plug and play and are probably the best. Like the omex loom is still incomplete loom and thats just the ecu loom rather than the oem too.

Ye because the omex loom is not a custom loom for your car.

IMHO GR looms are better.

Jungle · 1st February 2011, 09:43

BTW thats not a dig at his work its just my personal opinion.